International Journal of Terahertz Science and Technology
  TST >> Vol.12, No.3, September 2019: PP. 57-92

(Invited paper) Hand-held miniature terahertz time-domain attenuated total reflection spectroscopy module

Daniel Molter 1*, Garik Torosyan 2, Jens Klier 1, Carsten Matheis 1, Christian Petermann 3, Stefan Weber 1, 4, Frank Ellrich 5, Joachim Jonuscheit 1, Ren└ Beigang 4, and Georg von Freymann 1 ,4
1 Fraunhofer Institute for Industrial Mathematics ITWM, Center for Materials Characterization and Testing, 67663 Kaiserslautern, Germany
2 Photonik-Zentrum Kaiserslautern e.V., 67663 Kaiserslautern, Germany
3 TRUMPF Laser GmbH, 78713 Schramberg, Germany
4 Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany
5 TH Bingen, University of Applied Sciences, 55411 Bingen
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Abstract: We present a monolithic silicon module for time-domain attenuated total reflection spectroscopy in the terahertz spectral range. Its volume is less than 1 cm3 and is directly merged with the fiber-coupled low temperature grown gallium arsenide emitter and detector antennas. Measurements of liquids, mixtures of liquids, solutions as well as solids are presented. The compactness and direct fiber-coupling of the device makes it flexible for a variety of possible applications

Keywords: Terahertz time-domain spectroscopy, ATR.

Received: 2019-8-30

Published: 2019-9-30

Acknowledgments: We gratefully acknowledge the kind support of Matthias Heyden in interpretation of the measurement results shown in Fig. 6.

Cite this article:
Daniel Molter, Garik Torosyan, Jens Klier, Carsten Matheis, Christian Petermann, Stefan Weber, Frank Ellrich, Joachim Jonuscheit, Ren└ Beigang, and Georg von Freymann; Hand-held miniature terahertz time-domain attenuated total reflection spectroscopy module[J]. International Journal of Terahertz Science and Technology, 2019, Vol.12, No.3: 69-76.  DOI:10.11906/TST.069-076.2019.09.07




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